Studies of beauty suppression via nonprompt D0 mesons in Pb-Pb collisions at √sNN=5.02 TeV
dc.contributor.author | Sirunyan, A. M. | pt_BR |
dc.contributor.author | Silveira, Gustavo Gil da | pt_BR |
dc.contributor.author | CMS Collaboration | pt_BR |
dc.date.accessioned | 2019-09-04T02:35:20Z | pt_BR |
dc.date.issued | 2019 | pt_BR |
dc.identifier.issn | 0031-9007 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/198767 | pt_BR |
dc.description.abstract | The transverse momentum spectra of D0 mesons from b hadron decays are measured at midrapidity (|y|<1) in pp and Pb-Pb collisions at a nucleon-nucleon center of mass energy of 5.02 TeV with the CMS detector at the LHC. The D0 mesons from b hadron decays are distinguished from prompt D0 mesons by their decay topologies. In Pb-Pb collisions, the B→D0 yield is found to be suppressed in the measured pT range from 2 to 100 GeV/c as compared to pp collisions. The suppression is weaker than that of prompt D0 mesons and charged hadrons for pT around 10 GeV/c. While theoretical calculations incorporating partonic energy loss in the quark-gluon plasma can successfully describe the measured B→D0 suppression at higher pT, the data show an indication of larger suppression than the model predictions in the range of 2<pT<5 GeV/c | en |
dc.format.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Physical review letters. Melville. Vol. 123, no. 2 (July 2019), 022001, 18 p. | pt_BR |
dc.rights | Open Access | en |
dc.subject | Aceleradores de partículas | pt_BR |
dc.subject | Colisões proton-proton | pt_BR |
dc.subject | Colisao de nucleon-nucleo | pt_BR |
dc.subject | Mesons | pt_BR |
dc.title | Studies of beauty suppression via nonprompt D0 mesons in Pb-Pb collisions at √sNN=5.02 TeV | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 001099006 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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